Improvement in hose-coupling



N, PETERS. PHoTo L THOGRAP secured.

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THOMAS L. JOHNSON AND JOHN FITZGERALD, OF ROCHESTER, NEW -YORK.

Letters Patent No. 98,774, dated January 1,1, 1870. l l

`Ilhe Schedule referred to in these Letters Patent and making part of the same.

To all whom'c't may concern Be it knownthat we, THOMAS L. J oHNsoN and JOHN F1'rzGnRALD,-of Rochester, in the county of Monroe, and State of New York, have invented certain new and useful Improvements in Hose-Couplings; and we do hereby declare that the following is a full,

clear, and exact description thereof, reference being had .to the accompanying drawings, making part oi' I this specification, in whichlto correspond with the threadon the conical necks of the couplings, and are made of such'a diameter as to just admit the hose between them and `said necks.

`lhe collars are rst slipped upon the hose, the ends of the latter drawn upon the coupling-necks, and the collars then screwed over both.

The consequence is that the material of which the hose is composed is forced into the threads and irml y Should the material shrink orbecome loose,

ling-necks and collars B. The thread is slightly tlattened or rounded, as shown, to prevent cutting or tearing of" the hose, and lugs b are provided upon the collars, to which a wrench may be applied, if necessary.

To connect. the two parts of the coupling, we provide the union nut A, screwed upon the. female portion of the coupling, between the collar Band ange a. 'lhe outer'eud of this union nut is cored out large enough to receive the lugs d upon the male coupling D, and has an internal flange, c, at itsouter edge, under which the lugs (l catch. This flange is cut away at proper points, as shown-'at 4l', fig. 2, to allow the lugs d to enter. y

The diameter of t-he flange a is such that the flange c slips easily overit.

'lhe packing-ring f rests between the ange a and the end of the male coupling, and is prevented from dropping ont by the flange c. l

. .We also provide the spurs x, projecting from either part of the coupling, and entering recesses formed in the opposite portion. The object ot' this is to'prevent the female coupling from ,revolving with the union nut A.

To couple the hose, the union nut is turned till the lspurs :v register with the openings d in the angec,

as shown in fig. 2. The male coupling Dis then inserted, the spurs :z:` entering the recesses x', and the nut A revolved on the threaded neck till the packing is tightly pinched. f

The longitudinal adjustment of the nut A maybe such, with relation to the thickness of the packingring and lugs d, that the latter may catch easily under the flange c, and the joint be made tight by less-than one-halt'a revolution of the nut, as shown by dotted lines'in fig. 2,. This adjustment is found when the coupling is tted up, and t-henendmotion of the nut limited to about one revolution, by the collar B and ange a.

The lugs g are provided on the nut A for the pur- I pose of applying a wrench, if necessary.

It may be desirable that the thread in the union nut `A be left-handed, whereby the coupling `is tightened by a right-hand turn.

In place of the lugs b and y, recesses may be pro-V vided in the collar B and mit A, into which a wrench may be'inserted.

The hydrantconnection for this. coupling may be covered with a cap similar to the female portion ot the coupling, except that in place of' the coupling-neck a threaded plug is used, having the usual flange. a.

It will be observed that the attachment ofthe hose to the coupling is' quickly and eiciently made, and also, the operation ot' coupling the hose'is performed in a fractionoi the time required by the ordinary screw-coupling, while the arrangement is simple and cheap. o

W'hat we claim as our inventiomand desire to se cure by Letters Patent, is.

The union nut A and male coupling D, constructed substantially as described, in combination with the spurs x and recesses az', for the purposes herein setr 

